Prosecution Insights
Last updated: April 19, 2026
Application No. 18/850,313

DETERMINATION OF SLIP TARGET FOR A VEHICLE ENGINE SPEED CONTROLLER

Final Rejection §102
Filed
Sep 24, 2024
Examiner
PICON-FELICIANO, RUBEN
Art Unit
3747
Tech Center
3700 — Mechanical Engineering & Manufacturing
Assignee
Volvo Truck Corporation
OA Round
2 (Final)
68%
Grant Probability
Favorable
3-4
OA Rounds
3y 1m
To Grant
82%
With Interview

Examiner Intelligence

Grants 68% — above average
68%
Career Allow Rate
483 granted / 708 resolved
-1.8% vs TC avg
Moderate +13% lift
Without
With
+13.3%
Interview Lift
resolved cases with interview
Typical timeline
3y 1m
Avg Prosecution
61 currently pending
Career history
769
Total Applications
across all art units

Statute-Specific Performance

§101
1.0%
-39.0% vs TC avg
§103
46.3%
+6.3% vs TC avg
§102
37.2%
-2.8% vs TC avg
§112
13.0%
-27.0% vs TC avg
Black line = Tech Center average estimate • Based on career data from 708 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . 2. This Office Action is sent in response to Applicant's Communication received on February 04, 2026. Response to Arguments Applicant's arguments/remarks filed February 04, 2026, with respect to claims 1-3, 8, and 10-20 rejections under 35 U.S.C. 102(a)(1) as being anticipated by (NONAKA – EP 3299237 A1) have been fully considered but they are not persuasive as explained below. Applicant respectfully asserts that the cited prior art fails to meet the limitations “…setting, at least when the difference ωmax−ωmin exceeds the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller, wherein the modified slip target is determined as μtrgt=μreq/K …”. The Examiner respectfully submits that NONAKA discloses a wheel speed difference deriving portion 28 that derives a wheel speed difference which is a deviation between the maximum wheel speed and the minimum wheel speed of the wheels of the vehicle M. Further on, NONAKA discloses a target slip ratio setting portion 29 that sets the target slip ratio on the basis of at least one of the wheel speed difference, the vehicle body speed, and the request drive amount, or a combination thereof. Moreover, the target slip ratio setting portion 29 inputs the selected mode selected by the mode selecting switch 17 and sets the slip ratio corresponding to the selected mode as the target slip ratio. For example, the target slip ratio setting portion 29 sets the slip ratio corresponding to the selected mode as the target slip ratio, when either one of the first to fifth modes is selected by the mode selecting switch 17. In this case, the driver of the vehicle M operates the mode selecting switch 17 to select a mode in accordance with the vehicle travelling road surface condition. The target slip ratio setting portion 29 {{{lowers}}} [emphasis here] the target slip ratio when the wheel speed difference is large. For example, the target slip ratio setting portion 29 judges that the wheel speed difference is large when the wheel speed difference is larger than a first wheel speed difference threshold value. Going back to claim 1, the claim language requires that the modified slip target is determined as μtrgt=μreq/K, where K≥1 is a {{{reduction factor}}} [emphasis here and above; i.e., lowering the target slip ratio] and wherein the reduction factor K is a function (i.e., when the wheel speed difference is large) of the difference ωmax−ωmin. Accordingly, in view of the above, the Examiner respectfully maintains that NONAKA discloses the limitations “…setting, at least when the difference ωmax−ωmin exceeds the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller, wherein the modified slip target is determined as μtrgt=μreq/K …” as required in at least claims 1, 13 and 19. Disposition of Claims Claims 1-3 and 6-20 are pending in this application. Claims 6-7 and 9 are objected as allowable subject matter. Claims 1-3, 8, and 10-20 are rejected. Allowable Subject Matter Claims 6-7 and 9 are objected to as being dependent upon a rejected base claim, but would be allowable if rewritten in independent form including all of the limitations of the base claim and any intervening claims. Claim Rejections - 35 USC § 102 The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale or otherwise available to the public before the effective filing date of the claimed invention. (a)(2) the claimed invention was described in a patent issued under section 151, or in an application for patent published or deemed published under section 122(b), in which the patent or application, as the case may be, names another inventor and was effectively filed before the effective filing date of the claimed invention. Claims 1-3, 8, and 10-20 are rejected under 35 U.S.C. 102(a)(1) as being anticipated by (NONAKA – EP 3299237 A1). Regarding claim 1, NONAKA discloses: A method for determining a modified slip target μtrgt for a vehicle engine speed controller, the method comprising: comparing a difference between a maximum wheel speed ωmax and a minimum wheel speed ωmin for wheels of open differential and driven axles controlled by the vehicle engine speed controller to a preconfigured wheel speed offset ΔS ([Abstract, 0059-0080]: “the vehicle control apparatus 20 includes a vehicle body speed deriving portion 23 which derives the vehicle body speed of the vehicle M, a wheel speed difference deriving portion 28 {{{which derives a wheel speed difference}}} that is {{{a deviation}}} between a {{{maximum wheel speed and a minimum wheel speed}}} among each wheel speed of wheels of the vehicle M, a request drive amount deriving portion 24 which derives a request drive amount to a drive source of the vehicle, a torque suppressing device 16 which suppresses torque of a drive wheel of the wheels of the vehicle M, a traction control portion 31 which controls the torque suppressing device 16 to suppress an acceleration slip of the drive wheel based on a target slip ratio that is a target value of a slip ratio that is an acceleration slip ratio of the drive wheel relative to the vehicle body speed and {{{a target slip ratio setting portion 29 which sets the target slip ratio based on at least one of the wheel speed difference}}}, the vehicle body speed and the request drive amount or any combination thereof”); and setting, at least when the difference ωmax−ωmin exceeds the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller ([Abstract, 0059-0080]), wherein the modified slip target is determined as: μtrgt=μreq/K where K≥1 is a reduction factor and wherein the reduction factor K is a function of the difference ωmax−ωmin and the preconfigured wheel speed offset ΔS (Please see Examiner Comments below). Examiner Comments: NONAKA above discloses a reduction factor K that is a function of the maximum wheel speed ωmax and a minimum wheel speed ωmin and is at least a value of 1. Regarding claim 13, NONAKA discloses: A system for determining a modified slip target μtrgt for a vehicle engine speed controller, the system comprising: processing circuitry, the processing circuitry being configured to cause the system to: compare a difference between a maximum wheel speed ωmax and a minimum wheel speed ωmin for wheels of open differential and driven axles controlled by the vehicle engine speed controller to a preconfigured wheel speed offset ΔS ([Abstract, 0059-0080]: “the vehicle control apparatus 20 includes a vehicle body speed deriving portion 23 which derives the vehicle body speed of the vehicle M, a wheel speed difference deriving portion 28 {{{which derives a wheel speed difference}}} that is {{{a deviation}}} between a {{{maximum wheel speed and a minimum wheel speed}}} among each wheel speed of wheels of the vehicle M, a request drive amount deriving portion 24 which derives a request drive amount to a drive source of the vehicle, a torque suppressing device 16 which suppresses torque of a drive wheel of the wheels of the vehicle M, a traction control portion 31 which controls the torque suppressing device 16 to suppress an acceleration slip of the drive wheel based on a target slip ratio that is a target value of a slip ratio that is an acceleration slip ratio of the drive wheel relative to the vehicle body speed and {{{a target slip ratio setting portion 29 which sets the target slip ratio based on at least one of the wheel speed difference}}}, the vehicle body speed and the request drive amount or any combination thereof”); and set, at least when the difference ωmax−ωmin exceeds the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller ([Abstract, 0059-0080]), wherein the modified slip target is determined as: μtrgt=μreq/K where K≥1 is a reduction factor, and wherein the reduction factor K is a function of the difference ωmax−ωmin and the preconfigured wheel speed offset ΔS (Please see Examiner Comments above). Regarding claim 19, NONAKA discloses: A computer program for determining a modified slip target μtrgt for a vehicle engine speed controller, the computer program comprising: computer code which, when run on processing circuitry of a system, causes the system to: compare a difference between a maximum wheel speed ωmax and a minimum wheel speed ωmin for wheels of open differential and driven axles controlled by the vehicle engine speed controller to a preconfigured wheel speed offset Δs ([Abstract, 0059-0080]: “the vehicle control apparatus 20 includes a vehicle body speed deriving portion 23 which derives the vehicle body speed of the vehicle M, a wheel speed difference deriving portion 28 {{{which derives a wheel speed difference}}} that is {{{a deviation}}} between a {{{maximum wheel speed and a minimum wheel speed}}} among each wheel speed of wheels of the vehicle M, a request drive amount deriving portion 24 which derives a request drive amount to a drive source of the vehicle, a torque suppressing device 16 which suppresses torque of a drive wheel of the wheels of the vehicle M, a traction control portion 31 which controls the torque suppressing device 16 to suppress an acceleration slip of the drive wheel based on a target slip ratio that is a target value of a slip ratio that is an acceleration slip ratio of the drive wheel relative to the vehicle body speed and {{{a target slip ratio setting portion 29 which sets the target slip ratio based on at least one of the wheel speed difference}}}, the vehicle body speed and the request drive amount or any combination thereof”); and set, at least when the difference ωmax−ωmin exceeds the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller ([Abstract, 0059-0080]), wherein the modified slip target is determined as: μtrgt=μreq/K where K≥1 is a reduction factor, and wherein the reduction factor K is a function of the difference ωmax−ωmin and the preconfigured wheel speed offset Δs (Please see Examiner Comments above). Regarding claim 2, NONAKA disclose the method according to claim 1, and further on NONAKA also discloses: wherein the method further comprises: setting, when the difference ωmax−ωmin is larger than 0, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller ([Abstract, 0059-0080]). Regarding claim 3, NONAKA disclose the method according to claim 1, and further on NONAKA also discloses: wherein the method further comprises: setting, when the difference ωmax−ωmin fails to exceed the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to at most be equal to the requested slip target μreq ([Abstract, 0059-0080]). Regarding claim 8, NONAKA disclose the method according to claim 1, and further on NONAKA also discloses: wherein the reduction factor K is limited to, over time, change differently depending on whether the difference ωmax−ωmin is increasing or decreasing over time ([Abstract, 0059-0080]). Regarding claim 10, NONAKA disclose the method according to claim 1, and further on NONAKA also discloses: wherein the maximum wheel speed ωmax is determined as: ωmax=max (ω1, ω2, ω3, …) and the minimum wheel speed ωmin is determined as: ωmin=min (ω1, ω2, ω3, ...) where ωi is the wheel speed for wheel i of the open differential and driven axles of the vehicle ([Abstract, 0059-0080]). Regarding claim 11, NONAKA disclose the method according to claim 1, and further on NONAKA also discloses: wherein the method further comprises: converting, with respect to a reference wheel speed ωref, the modified slip target μtrgt to an engine speed limit vlim ([Abstract, 0059-0080]). Regarding claim 12, NONAKA disclose the method according to claim 11, and further on NONAKA also discloses: wherein the method further comprises: controlling wheel speeds of the wheels of the open differential and driven axles according to the engine speed limit vlim ([Abstract, 0059-0080]). Regarding claim 14, NONAKA disclose the system according to claim 13, and further on NONAKA also discloses: the processing circuitry being configured to cause the system to: set, when the difference ωmax−ωmin is larger than 0, the modified slip target μtrgt to be lower than a requested slip target μreq for the vehicle engine speed controller ([Abstract, 0059-0080]). Regarding claim 15, NONAKA disclose the system according to claim 13, and further on NONAKA also discloses: the processing circuitry being configured to cause the system to: set, when the difference ωmax−ωmin fails to exceed the preconfigured wheel speed offset ΔS, the modified slip target μtrgt to at most be equal to the requested slip target μreq ([Abstract, 0059-0080]). Regarding claim 16, NONAKA disclose the system according to claim 13, and further on NONAKA also discloses: the processing circuitry being configured to cause the system to: convert, with respect to a reference wheel speed μreq, the modified slip target μtrgt to an engine speed limit vlim ([Abstract, 0059-0080]). Regarding claim 17, NONAKA disclose the system according to claim 13, and further on NONAKA also discloses: the processing circuitry being configured to cause the system to: control wheel speeds of the wheels of the open differential and driven axles according to the engine speed limit vlim ([Abstract, 0059-0080]). Regarding claim 18, NONAKA disclose the system according to claim 13, and further on NONAKA also discloses: a vehicle comprising the system of claim 13 ([Abstract, 0059-0080]). Regarding claim 20, NONAKA disclose the computer program product according to claim 19, and further on NONAKA also discloses: a computer program product comprising the computer program of claim 19, and a computer readable storage medium on which the computer program is stored ([Abstract, 0059-0080]). Conclusion Applicant's amendment necessitated the new ground(s) of rejection presented in this Office action. Accordingly, THIS ACTION IS MADE FINAL. See MPEP § 706.07(a). Applicant is reminded of the extension of time policy as set forth in 37 CFR 1.136(a). A shortened statutory period for reply to this final action is set to expire THREE MONTHS from the mailing date of this action. In the event a first reply is filed within TWO MONTHS of the mailing date of this final action and the advisory action is not mailed until after the end of the THREE-MONTH shortened statutory period, then the shortened statutory period will expire on the date the advisory action is mailed, and any nonprovisional extension fee (37 CFR 1.17(a)) pursuant to 37 CFR 1.136(a) will be calculated from the mailing date of the advisory action. In no event, however, will the statutory period for reply expire later than SIX MONTHS from the mailing date of this final action. Any inquiry concerning this communication or earlier communications from the examiner should be directed to Ruben Picon-Feliciano whose telephone number is (571)-272-4938. The examiner can normally be reached on Monday-Thursday within 11:30 am-7:30 pm ET. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, Lindsay M. Low can be reached on (571)272-1196. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of an application may be obtained from the Patent Application Information Retrieval (PAIR) system. Status information for published applications may be obtained from either Private PAIR or Public PAIR. Status information for unpublished applications is available through Private PAIR only. For more information about the PAIR system, see http://pair-direct.uspto.gov. Should you have questions on access to the Private PAIR system, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative or access to the automated information system, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /RUBEN PICON-FELICIANO/Examiner, Art Unit 3747 /GRANT MOUBRY/Primary Examiner, Art Unit 3747
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Prosecution Timeline

Sep 24, 2024
Application Filed
Nov 02, 2025
Non-Final Rejection — §102
Feb 04, 2026
Response Filed
Feb 24, 2026
Final Rejection — §102 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
68%
Grant Probability
82%
With Interview (+13.3%)
3y 1m
Median Time to Grant
Moderate
PTA Risk
Based on 708 resolved cases by this examiner. Grant probability derived from career allow rate.

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